LG(樂金)型號:50LB5610,啟動後,有亮背光、無影像,維修。高雄、屏東液晶電視(LCD TV)維修,高雄、屏東液晶螢幕(LCD、LED)維修
IPFS
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大家早安—大家好!
歡迎收看本日液晶電視維修分享,我是—『Kao atunLCD(高雄.阿唐液晶)』曾仔!
來看今天的液晶電視維修分享,主角是:LG(樂金)型號:50LB5610
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關於它的維修歷史,2年多前交手時曾經有述說:各位可連結去閱覽
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這裡是它的內部電路分佈:
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來看一下它的故障現象:
啟動後背光是有亮起的,所以已經與2年多前維修的背光無關,即使再壞背光,也已近2.5年個年頭,早已過維修保固!
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啟動後,功率數值40.5W,也可以說明背光亮起!
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傷腦筋的是:有亮背光,卻沒有顯示影像!!!
這就是本機天要改善的故障現象:『黑亮屏』
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查檢、除錯、更替中…………
屏幕工作電壓(DC:12V)有到來,但是ㄋ……,晶體開關高電壓(VGH)並無輸出???
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除錯後!VGH已經有輸出,所以也就有了LOGO顯示
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來送入訊號測試囉!
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我們需要再調理一下電壓,以期它能長居久安!!!
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影像OK,LB這一系列的話直一直都讓我很讚賞!
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提供參考,請多指教!
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工作室附近Google街景:
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工作室地理位置:
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維修收送專線:(07)5531525;0928029525 曾仔~
本工作室更換零件,一律採用 ─ Nippon Chime-Con(NCC)日系無鉛零件!
敬請—放心送修!安心使用!
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